I made a mistake A Mistake Made

Just now ,I just made a mistake .  In China, Friends and friends is can be very palsy and are  friendly,Can open any jokes. are able to take all kinds of jokes.  However in But,In Skype, I just cracked a joke but hurt a friend was hurt.  I really can't don't understand.  I'm so said sad!  But, still I hope he can forgive my wisecrack practice!  After all, Because we are friends.  I am so sorrylast!

This is because when you talk and joke around with someone face to face, they can read your facial expressions and your body language.  Using email, Skype or other virtual manner, such visual cues are absent and can cause misunderstanding very easily.

You need to learn punctuation spacing rules. http://www.italki.com/knowledge/page/Mechanics%20Of%20The%20English%20Language.htm

I made a mistake